Home / 8,516.75-12,760.70-5,400.27

Finding the Fourth Proportional to 8,516.75, 12,760.70 and 5,400.27

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Solution

The fourth proportional to 8,516.75, 12,760.70 and 5,400.27 is: 8,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.75 : 12,760.70 = 5,400.27 : x
  2. Step 2: Convert to fraction form
    8,516.75/12,760.70 = 5,400.27/x
  3. Step 3: Cross multiply
    8,516.75x = 12,760.70 × 5,400.27
  4. Step 4: Simplify right side
    8,516.75x = 68,911,198.39
  5. Step 5: Solve for x
    x = 68,911,198.39/8,516.75
  6. Step 6: Final answer
    x = 8,091.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.